Ventilator



l. VENTILATOR l Filed sept. 3. 1927 2 sheetssheet 2 i-Wr? ATTORNEYPatented May 6, 1930 PATENT OFFICE THEODORE A. WEINHEIMER AND ELMERHOFFMAN, F PITTSBURGH, PENNSYLVANIA VEN TILATOR Application ledSeptember 3, 1927. Serial No. 217,474.

This invention relates to improvements in ventilators for buildings, anobj ect being to provide a ventilator which may be combined with awindow casing and operated to regulate the admission of air, with thewindow closed.

Another object of the invention is the provision of a ventilator whichmay be combined with either a metal or wood window casing,

10 with the Ventilating passage either built into or made separate fromthe casing, the construction being such that the ventilator will bepractically concealed.

Another object of the invention is the provision of means forcontrolling the passage of air through the ventilator, so that a room orbuilding may be ventilated in accordance with the desire of theoccupant.

With the above and other objects in view,

' the invention further includes the following novel features anddetails of construction, to be hereinafter more fully described,illustrated in the accompanying drawings and pointed out in the appendedclaim.

In the drawings Figure 1 is an elevation showing a fragmentary portionof a wall with the ventilator positioned above the top of a window.

Figure 2' is a like view showing the ventilator forming a part of awindow casing.

Figure 3 is a vertical sectional view of the subject matter illustratedin Figure 1.

Figure 4 is an enlarged fragmentary section on the line 4--4 of Figure3.

Figure 5 is a like view on the line 5 5 of Figure 3.

Figure 6 is a fragmentary sectional view showing a slightly differentarrangement of ventilator.

Figure 7 is a fragmentary perspective view of one end of the damper orregulator and showing its connection with the operating rod.

Referring to the drawings in detail wherein like characters of referencedenote corresponding parts, the reference character 10 indicates aportion of the wall of a building within which is provided a windowopening 11 having a window casing 12 positioned therein. As shown inFigure 1 of the drawings, this casing is located within a brick wall andextending along the top of the casing is a panel 13. This panel takesthe place of the usual stone or brick heading at the top of the windowand forms the front wall of an air inlet chamber 14. The panel isprovided with openings which may be of an ornamental character and whichserve to admit air into the chamber 14. The outer face of the panel isflush with the outer face of the wall. If desired, the panel may form aportion of the window casing as shown at 13a in Figure 2, the casingwhich is made of wood is'indicated at12a in the said ligure.

.The panel 13a is also provided with openings 15a of an ornamentalcharacter so as to add to the attractiveness of the window casing.

Extending inwardly from and communicatingl with the chamber 14 is oneend of a passage 16. This passage extends inwardly and downwardly at anangle as indicated at 17, its inner end Opening through the top portionof the window casing as shown at 18. The passage 16 is relatively narrowand its open end is covered by a preferably copper screen 19 which isheld in place by a perforated plate 20. The Vplate is removably securedto the window casing by screws or like fastening devices as shown at 21,so that by removing the plate 2O the screen may also be removed andaccess had to the interior of the passage for the purpose of removingany accumulation of dirt or trash.

If desired, the passage may extend directly inward as shown at 16a inFigure 6 of the drawings, its inner end opening through the trim 22 ofthe window casing and being closed by a screen 23 and a removableperforated plate 24. In this form of the invention the air has a directpassage from the outside of the building to the inside, while in theform of the invention shown in Figure 3, the air travels inward anddownward and enters through the upper portion of the window casing. Inthis last referred to form of the invention, the plate is practicallyhidden so that it will be scarcely noticed by persons within thebuilding.

Pivotally mounted within the passage 16 as shown at 25 is a damper 26which may be moved to regulate the passage of air. For this purpose, thepivot 25 has extending therefrom a crank arm 27 which is connected by alink 28 with the right-angled end 29 of a rod 30. This rod extendsdownward through one of the weight boxes 31 of the window casing and isguided for vertical movement therein by means of guides 32. The lowerend of the rod is provided with a rightangular extension 33 whichprojects through openings 34 provided in the casing, a slotted plate 35being secured around this slot upon the trim. A knob or linger piece 36is lcarried by the extension 33.

It will be apparent from the foregoing Y description and accompanyingdrawings that the ventilator may be used irrespective of the closedposition of the window and the amount of air admitted through theventilator conveniently regulated by the use of the extension 33.

The invention is susceptible of various changes in its form, proportionsand minor details of construction and the right is herein reserved tomake such changes as properly fall within the scope of the appendedclaim. Having described the invention what is claimed is:

A ventilator comprising in combination with a window casing, an airconduit located adgacent to and extending transversely of the casing, arelatively large air inlet chamber communicating with the inner end ofthe conduit and opening at the inside of the casing, a damper mountedfor pivotal movement in the conduit7 a longitudinally movable operatingrod mounted within the casing, means operatively connecting the damperand rod, and a right angularly disposed Q vhandle carried by the rod andextending through the window casing.

In testimony whereof we affix our signatures.

THEODORE A. WEINHEIMER. ELMER HOFFMAN.

